class Main {
    public static void main(String[] args) {
        Person s1=new Person("lili",19);
        System.out.println(s1.print());
        Person s2=new Person("lucy",20);
        System.out.println(s2.print());
    }
}
class Person {
    private String name;
    private int age;
    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }
    public String getName() {
        return name;
    }
    public int getAge() {
        return age;
    }
    public void setName(String name) {
        this.name = name;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public String print() {
        return "this person is "+name+",her age is " + age;
    }
}